/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.server.schema;
/**
* This class defines utility methods that can be used to determine whether a
* character string is printable as defined in X.520 and referenced in RFC 2252.
* Printable characters consist of the set of uppercase and lowercase alphabetic
* characters, numeric digits, quotation mark, open and close parentheses, plus,
* minus, comma, period, slash, colon, question mark, and space.
*/
public class PrintableString
{
/**
* Indicates whether the provided character is a valid printable character.
*
* @param c The character for which to make the determination.
*
* @return <CODE>true</CODE> if the provided character is a printable
* character, or <CODE>false</CODE> if not.
*/
public static boolean isPrintableCharacter(char c)
{
switch (c)
{
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
case 'g':
case 'h':
case 'i':
case 'j':
case 'k':
case 'l':
case 'm':
case 'n':
case 'o':
case 'p':
case 'q':
case 'r':
case 's':
case 't':
case 'u':
case 'v':
case 'w':
case 'x':
case 'y':
case 'z':
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
case 'G':
case 'H':
case 'I':
case 'J':
case 'K':
case 'L':
case 'M':
case 'N':
case 'O':
case 'P':
case 'Q':
case 'R':
case 'S':
case 'T':
case 'U':
case 'V':
case 'W':
case 'X':
case 'Y':
case 'Z':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '\'':
case '(':
case ')':
case '+':
case ',':
case '-':
case '.':
case '=':
case '/':
case ':':
case '?':
case ' ':
return true;
default:
return false;
}
}
/**
* Indicates whether the provided string is a valid printable string.
*
* @param s The string for which to make the determination.
*
* @return <CODE>true</CODE> if the provided string is a printable string, or
* <CODE>false</CODE> if not.
*/
public static boolean isPrintableString(String s)
{
if (s == null)
{
return false;
}
int length = s.length();
for (int i=0; i < length; i++)
{
if (! isPrintableCharacter(s.charAt(i)))
{
return false;
}
}
return true;
}
}